#include <linux/nfs_fs.h>
#include <linux/vmalloc.h>
#include <linux/module.h>
-#include <linux/sunrpc/addr.h>
#include "../internal.h"
#include "../nfs4session.h"
kfree(dsaddr);
}
-/*
- * Currently only supports ipv4, ipv6 and one multi-path address.
- */
-static struct nfs4_pnfs_ds_addr *
-decode_ds_addr(struct net *net, struct xdr_stream *streamp, gfp_t gfp_flags)
-{
- struct nfs4_pnfs_ds_addr *da = NULL;
- char *buf, *portstr;
- __be16 port;
- int nlen, rlen;
- int tmp[2];
- __be32 *p;
- char *netid, *match_netid;
- size_t len, match_netid_len;
- char *startsep = "";
- char *endsep = "";
-
-
- /* r_netid */
- p = xdr_inline_decode(streamp, 4);
- if (unlikely(!p))
- goto out_err;
- nlen = be32_to_cpup(p++);
-
- p = xdr_inline_decode(streamp, nlen);
- if (unlikely(!p))
- goto out_err;
-
- netid = kmalloc(nlen+1, gfp_flags);
- if (unlikely(!netid))
- goto out_err;
-
- netid[nlen] = '\0';
- memcpy(netid, p, nlen);
-
- /* r_addr: ip/ip6addr with port in dec octets - see RFC 5665 */
- p = xdr_inline_decode(streamp, 4);
- if (unlikely(!p))
- goto out_free_netid;
- rlen = be32_to_cpup(p);
-
- p = xdr_inline_decode(streamp, rlen);
- if (unlikely(!p))
- goto out_free_netid;
-
- /* port is ".ABC.DEF", 8 chars max */
- if (rlen > INET6_ADDRSTRLEN + IPV6_SCOPE_ID_LEN + 8) {
- dprintk("%s: Invalid address, length %d\n", __func__,
- rlen);
- goto out_free_netid;
- }
- buf = kmalloc(rlen + 1, gfp_flags);
- if (!buf) {
- dprintk("%s: Not enough memory\n", __func__);
- goto out_free_netid;
- }
- buf[rlen] = '\0';
- memcpy(buf, p, rlen);
-
- /* replace port '.' with '-' */
- portstr = strrchr(buf, '.');
- if (!portstr) {
- dprintk("%s: Failed finding expected dot in port\n",
- __func__);
- goto out_free_buf;
- }
- *portstr = '-';
-
- /* find '.' between address and port */
- portstr = strrchr(buf, '.');
- if (!portstr) {
- dprintk("%s: Failed finding expected dot between address and "
- "port\n", __func__);
- goto out_free_buf;
- }
- *portstr = '\0';
-
- da = kzalloc(sizeof(*da), gfp_flags);
- if (unlikely(!da))
- goto out_free_buf;
-
- INIT_LIST_HEAD(&da->da_node);
-
- if (!rpc_pton(net, buf, portstr-buf, (struct sockaddr *)&da->da_addr,
- sizeof(da->da_addr))) {
- dprintk("%s: error parsing address %s\n", __func__, buf);
- goto out_free_da;
- }
-
- portstr++;
- sscanf(portstr, "%d-%d", &tmp[0], &tmp[1]);
- port = htons((tmp[0] << 8) | (tmp[1]));
-
- switch (da->da_addr.ss_family) {
- case AF_INET:
- ((struct sockaddr_in *)&da->da_addr)->sin_port = port;
- da->da_addrlen = sizeof(struct sockaddr_in);
- match_netid = "tcp";
- match_netid_len = 3;
- break;
-
- case AF_INET6:
- ((struct sockaddr_in6 *)&da->da_addr)->sin6_port = port;
- da->da_addrlen = sizeof(struct sockaddr_in6);
- match_netid = "tcp6";
- match_netid_len = 4;
- startsep = "[";
- endsep = "]";
- break;
-
- default:
- dprintk("%s: unsupported address family: %u\n",
- __func__, da->da_addr.ss_family);
- goto out_free_da;
- }
-
- if (nlen != match_netid_len || strncmp(netid, match_netid, nlen)) {
- dprintk("%s: ERROR: r_netid \"%s\" != \"%s\"\n",
- __func__, netid, match_netid);
- goto out_free_da;
- }
-
- /* save human readable address */
- len = strlen(startsep) + strlen(buf) + strlen(endsep) + 7;
- da->da_remotestr = kzalloc(len, gfp_flags);
-
- /* NULL is ok, only used for dprintk */
- if (da->da_remotestr)
- snprintf(da->da_remotestr, len, "%s%s%s:%u", startsep,
- buf, endsep, ntohs(port));
-
- dprintk("%s: Parsed DS addr %s\n", __func__, da->da_remotestr);
- kfree(buf);
- kfree(netid);
- return da;
-
-out_free_da:
- kfree(da);
-out_free_buf:
- dprintk("%s: Error parsing DS addr: %s\n", __func__, buf);
- kfree(buf);
-out_free_netid:
- kfree(netid);
-out_err:
- return NULL;
-}
-
/* Decode opaque device data and return the result */
struct nfs4_file_layout_dsaddr *
nfs4_fl_alloc_deviceid_node(struct nfs_server *server, struct pnfs_device *pdev,
mp_count = be32_to_cpup(p); /* multipath count */
for (j = 0; j < mp_count; j++) {
- da = decode_ds_addr(server->nfs_client->cl_net,
- &stream, gfp_flags);
+ da = nfs4_decode_mp_ds_addr(server->nfs_client->cl_net,
+ &stream, gfp_flags);
if (da)
list_add_tail(&da->da_node, &dsaddrs);
}
#include <linux/nfs_fs.h>
#include <linux/nfs_page.h>
+#include <linux/sunrpc/addr.h>
#include "internal.h"
#include "pnfs.h"
return ds;
}
EXPORT_SYMBOL_GPL(nfs4_pnfs_ds_add);
+
+/*
+ * Currently only supports ipv4, ipv6 and one multi-path address.
+ */
+struct nfs4_pnfs_ds_addr *
+nfs4_decode_mp_ds_addr(struct net *net, struct xdr_stream *xdr, gfp_t gfp_flags)
+{
+ struct nfs4_pnfs_ds_addr *da = NULL;
+ char *buf, *portstr;
+ __be16 port;
+ int nlen, rlen;
+ int tmp[2];
+ __be32 *p;
+ char *netid, *match_netid;
+ size_t len, match_netid_len;
+ char *startsep = "";
+ char *endsep = "";
+
+
+ /* r_netid */
+ p = xdr_inline_decode(xdr, 4);
+ if (unlikely(!p))
+ goto out_err;
+ nlen = be32_to_cpup(p++);
+
+ p = xdr_inline_decode(xdr, nlen);
+ if (unlikely(!p))
+ goto out_err;
+
+ netid = kmalloc(nlen+1, gfp_flags);
+ if (unlikely(!netid))
+ goto out_err;
+
+ netid[nlen] = '\0';
+ memcpy(netid, p, nlen);
+
+ /* r_addr: ip/ip6addr with port in dec octets - see RFC 5665 */
+ p = xdr_inline_decode(xdr, 4);
+ if (unlikely(!p))
+ goto out_free_netid;
+ rlen = be32_to_cpup(p);
+
+ p = xdr_inline_decode(xdr, rlen);
+ if (unlikely(!p))
+ goto out_free_netid;
+
+ /* port is ".ABC.DEF", 8 chars max */
+ if (rlen > INET6_ADDRSTRLEN + IPV6_SCOPE_ID_LEN + 8) {
+ dprintk("%s: Invalid address, length %d\n", __func__,
+ rlen);
+ goto out_free_netid;
+ }
+ buf = kmalloc(rlen + 1, gfp_flags);
+ if (!buf) {
+ dprintk("%s: Not enough memory\n", __func__);
+ goto out_free_netid;
+ }
+ buf[rlen] = '\0';
+ memcpy(buf, p, rlen);
+
+ /* replace port '.' with '-' */
+ portstr = strrchr(buf, '.');
+ if (!portstr) {
+ dprintk("%s: Failed finding expected dot in port\n",
+ __func__);
+ goto out_free_buf;
+ }
+ *portstr = '-';
+
+ /* find '.' between address and port */
+ portstr = strrchr(buf, '.');
+ if (!portstr) {
+ dprintk("%s: Failed finding expected dot between address and "
+ "port\n", __func__);
+ goto out_free_buf;
+ }
+ *portstr = '\0';
+
+ da = kzalloc(sizeof(*da), gfp_flags);
+ if (unlikely(!da))
+ goto out_free_buf;
+
+ INIT_LIST_HEAD(&da->da_node);
+
+ if (!rpc_pton(net, buf, portstr-buf, (struct sockaddr *)&da->da_addr,
+ sizeof(da->da_addr))) {
+ dprintk("%s: error parsing address %s\n", __func__, buf);
+ goto out_free_da;
+ }
+
+ portstr++;
+ sscanf(portstr, "%d-%d", &tmp[0], &tmp[1]);
+ port = htons((tmp[0] << 8) | (tmp[1]));
+
+ switch (da->da_addr.ss_family) {
+ case AF_INET:
+ ((struct sockaddr_in *)&da->da_addr)->sin_port = port;
+ da->da_addrlen = sizeof(struct sockaddr_in);
+ match_netid = "tcp";
+ match_netid_len = 3;
+ break;
+
+ case AF_INET6:
+ ((struct sockaddr_in6 *)&da->da_addr)->sin6_port = port;
+ da->da_addrlen = sizeof(struct sockaddr_in6);
+ match_netid = "tcp6";
+ match_netid_len = 4;
+ startsep = "[";
+ endsep = "]";
+ break;
+
+ default:
+ dprintk("%s: unsupported address family: %u\n",
+ __func__, da->da_addr.ss_family);
+ goto out_free_da;
+ }
+
+ if (nlen != match_netid_len || strncmp(netid, match_netid, nlen)) {
+ dprintk("%s: ERROR: r_netid \"%s\" != \"%s\"\n",
+ __func__, netid, match_netid);
+ goto out_free_da;
+ }
+
+ /* save human readable address */
+ len = strlen(startsep) + strlen(buf) + strlen(endsep) + 7;
+ da->da_remotestr = kzalloc(len, gfp_flags);
+
+ /* NULL is ok, only used for dprintk */
+ if (da->da_remotestr)
+ snprintf(da->da_remotestr, len, "%s%s%s:%u", startsep,
+ buf, endsep, ntohs(port));
+
+ dprintk("%s: Parsed DS addr %s\n", __func__, da->da_remotestr);
+ kfree(buf);
+ kfree(netid);
+ return da;
+
+out_free_da:
+ kfree(da);
+out_free_buf:
+ dprintk("%s: Error parsing DS addr: %s\n", __func__, buf);
+ kfree(buf);
+out_free_netid:
+ kfree(netid);
+out_err:
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(nfs4_decode_mp_ds_addr);
projects / linux.git / commitdiff